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Finding the Fourth Proportional to 19,358.59, 29,037.90 and 5,507.59

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Solution

The fourth proportional to 19,358.59, 29,037.90 and 5,507.59 is: 8,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,358.59 : 29,037.90 = 5,507.59 : x
  2. Step 2: Convert to fraction form
    19,358.59/29,037.90 = 5,507.59/x
  3. Step 3: Cross multiply
    19,358.59x = 29,037.90 × 5,507.59
  4. Step 4: Simplify right side
    19,358.59x = 159,928,847.66
  5. Step 5: Solve for x
    x = 159,928,847.66/19,358.59
  6. Step 6: Final answer
    x = 8,261.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.